Pinapple - pulled pork

Does anyone have a pineapple based glaze or sauce recipe for pulled pork? I am doing a couple of butts for my granddaughters first birthday party and it is a Hawaiian themed party (I know, crazy for a 1st birthday but who am I to argue).

1 (2-inch) piece fresh ginger, whacked open with the flat side of a knife

In a saucepan over medium heat melt the butter and add the pineapple chunks; saute for 3 minutes. Add the soy sauce, rum, hoisin sauce, ketchup, vinegar, brown sugar, chile, garlic, and ginger. Bring to a slow simmer and cook, stirring, until thickened, about 20 minutes. Pull out the ginger pieces. Pour the glaze into a blender and puree until smooth.

In the last 30 minutes of cooking, baste the pork with some of the glaze.